SHRUBS BELONGING TO THE ROSE FAMILY. 55 



densis\ may be easily distinguished from the high 

 blackberry by the following characteristics : It is 

 vinelike, long-trailing, and only slightly prickly; it 

 has from three to seven double-toothed leaflets, 

 which are small and nearly, if not quite, smooth in 

 texture, and it is commonest in rocky or sandy soil. 

 The berry has also fewer grains, is more nearly 

 round than that of the other species, and ripens 

 earlier. 



